explain the mode of transmission of diarrhoea and common cold
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Diarrhoea is usually a symptom of aninfection in the intestinal tract, which can be caused by a variety of bacterial, viral and parasitic organisms. Infectionis spread through contaminated food or drinking-water, or from person-to-person as a result of poor hygiene
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Diarrhoea :- norovirus or rotavirus , through contaminated air or water
Common cold :- Rhino virus , through air
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